Attorney-General Mark Dreyfus has angrily rejected Japanese claims that the Australian Government has "outsourced" its anti-whaling campaign to controversial activist group Sea Shepherd.

Mr Dreyfus was speaking as he wrapped up Australia's legal challenge to the whaling program at the International Court of Justice in The Hague.

He was highly critical of Japan's previous assertions to the court about Australia's relationship with anti-whaling activists, saying allegations Australia supported violent extremism were "offensive and untrue".

And he told the court Japan's attempts to invoke a scientific justification for its whaling program were "not supported by any proper hypothesis".

On The Drum, Kevin Rudd dares Tony Abbott to take him on in four debates, Japan accuses Australia of moral crusading in the ICJ and we cross to Cairo to get the latest on the military push to overthrow president Morsi.

Federal Attorney-General Mark Dreyfus says Japan's whaling is in breach of international law and he wants the International Court of Justice to outlaw Japanese whaling before the start of the next whale hunting season.